T Blankinship wrote:Have you looked into building a trompe?
Trace Oswald wrote:
It's a cool idea. Some thoughts that may or may not be valid. I'm not sure you need the Fresnel lens at all. If you do, maybe focusing it higher on your tube, on the tube itself would draw the air through faster?
You said 24/7, but at night when it gets cooler outside and the sun goes down, won't the air flow stop, or you're planning to keep a fire going all the time?
Joshua Frank wrote:My desire for electric is not primarily to save on gas, but to have a machine that doesn't require internal combustion engine skills to maintain and repair, and to run quietly and without toxic fumes.